Estimates the  amount of power due to the incident radiation in a specific period.
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The output insolation is in Mega Joule (MJ) and the period of time is defined from the starting day (e.g. 2010-01-01) and the last day of the simulation (e.g. 2010-12-31).
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<h3>Inputs</h3>
<ul>      
<li>the file containing the matrix of the elevations, usually the DEM or the output of pitfiller </li>
<li>the first day of simulation</li>
<li>the last day of simulation</li>
</ul>
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<h3>Output</h3>
<ul>      
<li>the file containing the power matrix</li>
</ul>
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<h3>Notes</h3>
Please take care to insert the date in the format YYYY-MM-DD